Elfrida Wid, AZ
Lead detected, under the action levels
Latest 90th-percentile lead: 3 ppb (monitoring period 2024-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Who runs the water here
Elfrida Wid serves about 800 people through 233 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Cochise County, Arizona. EPA system ID: AZ0402017; phone on file: 520-642-1290. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is down 4 ppb from 7 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Elfrida Wid is 7 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 3 ppb |
| 2023 | 7 ppb |
| 2020 | 1 ppb |
| 2017 | 0 (not detected) |
Against other Arizona systems
Of the 730 Arizona systems with a lead result, the median latest reading is 0 ppb; 9 are over 15 ppb right now and 58 have gone over at some point. Elfrida Wid's 3 ppb sits at the 85th percentile in Arizona and the 82nd nationally (higher means more lead).
Nearby utilities
49 other systems share Cochise County; 7 of them have a higher latest lead result than Elfrida Wid. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Bella Vista City Water System | 20,045 | 0 (not detected) |
| Douglas City Of | 16,656 | 0 (not detected) |
| Us Army Fort Huachuca | 15,603 | 0 (not detected) |
| Pueblo Del Sol Water Company | 12,804 | 0 (not detected) |
| Arizona Water Co - Sierra Vista | 9,233 | 0 (not detected) |
| Arizona Water Co - Bisbee | 8,590 | 0 (not detected) |
| Benson, City Of Water System | 5,355 | 0 (not detected) |
| City Of Willcox | 3,236 | 0 (not detected) |
| St David Dwid | 2,192 | 0 (not detected) |
| Bella Vista Water South | 2,178 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Elfrida, AZ may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Elfrida Wid whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. Why sampled homes are the worst-case ones is in the guide to reading the number. Systems that went over once often dip back under; here is what that means.